CVE-2026-13333
Received Received - Intake
SQL Injection in Groundhogg WordPress Plugin

Publication date: 2026-06-27

Last updated on: 2026-06-27

Assigner: Wordfence

Description
The Groundhogg — CRM, Newsletters, and Marketing Automation plugin for WordPress is vulnerable to generic SQL Injection via 'query[select]' Parameter in all versions up to, and including, 4.5.5 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for authenticated attackers, with Sales Representative-level access and above, to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database. The sanitized Contact_Query code path can be bypassed by supplying an invalid filter type (e.g., query[filters][0][0][type]=invalid_filter_nonexistent), causing a FilterException to be caught and execution to fall through to the unsanitized Legacy_Contact_Query path.
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Meta Information
Published
2026-06-27
Last Modified
2026-06-27
Generated
2026-06-27
AI Q&A
2026-06-27
EPSS Evaluated
N/A
NVD
CVE-2026-13333
EUVD
EUVD-2026-39930
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
groundhogg groundhogg to 4.5.5 (inc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-89 The product constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component. Without sufficient removal or quoting of SQL syntax in user-controllable inputs, the generated SQL query can cause those inputs to be interpreted as SQL instead of ordinary user data.
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Executive Summary

The Groundhogg plugin for WordPress, used for CRM, newsletters, and marketing automation, has a vulnerability involving SQL Injection through the 'query[select]' parameter in all versions up to 4.5.5. This happens because the plugin does not properly escape user-supplied input and lacks sufficient preparation of SQL queries. Authenticated users with Sales Representative-level access or higher can exploit this by appending additional SQL queries to extract sensitive data from the database.

Additionally, the plugin's sanitized Contact_Query code can be bypassed by providing an invalid filter type, which causes an exception and forces execution to fall back to an unsanitized legacy query path, increasing the risk of exploitation.

Impact Analysis

This vulnerability allows attackers with certain authenticated access to extract sensitive information from the database by injecting malicious SQL queries. This can lead to unauthorized disclosure of confidential data stored within the Groundhogg plugin's database.

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